Bus



FIG. 1 is a right-side perspective view of a bus embodying our new design;

FIG. 2 is a left-side perspective view thereof;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines in the drawing illustrate portions of the bus that form no part of the claimed design. 

CLAIM The ornamental design for a bus, as shown and described. 